In various embodiments, a system and method for providing simplified checkout are provided. In example embodiments, an identifier that corresponds to a payment account of a user is received at a payment provider system. Account information from the payment account of the user is retrieved from a payment data storage of the payment provider system. The account information is used in a payment transaction involving a merchant system. A payment interface having transaction fields populated with the account information retrieved from the payment account of the user is presented to the user while the user maintains a presence on a webpage of a merchant system.